Voyager had an original compliment of 141(as stated by Lt Stadi) and had one CMO, a nurse(s) and a medical staff + the EMH. Even after Caretaker there was still a medical staff or team. They are only mentioned a few times and only seen once or twice, but they are blue shirts.
In season 1, episode 1, the Doctor, and at least one nurse died. In episode 2, Paris was voluntold to become an additional medic. Kes became a nurse in one of the first few episodes also.
There's also an important factor considering the EMH.....he never sleeps.
The NX-01 had a compliment of 82 + a squad of Jarheads. Phlox was the CMO, and he also had Medics. They were blueshirts.
There's also an important factor considering Phlox......he never sleeps.
(Well only 6 hours per year, but even then he gets bothered when his medics can't handle it) You gotta pay attention to details...it's all there. On a modern day vessel that small, there wouldn't be a doctor. On a much larger vessel, like with 1000+ crew. There would be one doctor, one dentist, and some medics.